Experimental Physics and Industrial Control System
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3. Is there a program that will extract a portion of an SDDS file? In
order to use SDDS for archiving (which it looks like it might be very
useful for), it's going to have to run forever on the IOC unit. If I
need to generate a dataset from a SDDS datafile, how do I pull out just
the period (say... everything from yesterday, midnite to midnite) from a
file that has much, much more information in it (days, weeks, or months
...)? I can come up with stuff to cause it to restart, say once a week,
but how do I pull out a subset of information?
You can use sddsprocess on individual files or sddscombine then
sddsprocess on multiple files. Refer to the user's guide
(http://www.aps.anl.gov/Accelerator_Systems_Division/Operations_Analysis/manuals/SDDStoolkit/SDDStoolkit.html)
for details.
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